Title (fr)

Publication

Application

Priority

DE 29520263 U 19951221

Abstract (en)

[origin: EP0780146A1] The steam-heated evaporator or thickener is especially suitable for sea water or sugar beet juice. Its plate heat exchangers accept pre-distributed fluid flow from above, which falls as a film on the inner surfaces of vertical channels within, hence being heated in cross- and countercurrent flow. The predistribution sheet (5) has holes (5a), for flow to two spaced, parallel distribution sheets (6,7) below. Holes (6a,7a) in these are of larger diameter, and offset from those above, such that the falling liquid jets (S5,S6) impact the metal between holes on the sheet below. Preferably, the predistribution region (5) has 500-1000, 6 mm diameter holes per m<2>. The distribution plates (6,7) have 5000 holes per m<2>, of 10 mm diameter and spaced apart by 10-20 mm.